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Anyone recognize the electronics found inside the Boston bombs?

Posted on 04/17/2013 9:29:17 AM PDT by swamp40

Anyone recognize the electronics found inside the Boston bombs?

I design electronics for a living, so these boards caught my attention.

The green board has some round corner notches. (Those are to avoid the screw posts in a rectangular enclosure.)

While not exactly unusual, they ARE distinctive.

I'm guessing they are some kind of remote control electronics from a place like ebay, especially since the battery used:

probably came from ebay:

The green pcb looks similar, but not exactly like an E-flite Blade CP (RC helicopter)- so I'm guessing it's a different model from E-flite.

Google Image Search for Blade CP pcb


TOPICS: US: Massachusetts; War on Terror; Your Opinion/Questions
KEYWORDS: boston; bostonbombing; marathon; vanity
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1 posted on 04/17/2013 9:29:17 AM PDT by swamp40
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To: swamp40

Futabu?


2 posted on 04/17/2013 9:29:52 AM PDT by al baby (Hi Mom)
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To: swamp40

Can you enhance the 1st pic anymore? It’s too fuzzy to correctly make out many of the components on the PCB. As an electronics tech I am very interested in seeing the electonics package used.


3 posted on 04/17/2013 9:35:28 AM PDT by sean327 (God created all men equal, then some become Marines!)
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To: swamp40

I’ve been designing PCB’s since ‘99, and they all look alike to me. Tough to tell what they are without much better pictures.


4 posted on 04/17/2013 9:37:53 AM PDT by Tijeras_Slim
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To: sean327

The pics are here:

http://photoblog.nbcnews.com/_news/2013/04/17/17793425-anatomy-of-a-bombing-photos-show-battery-wires-used-in-device?lite


5 posted on 04/17/2013 9:38:35 AM PDT by RushIsMyTeddyBear (Great vid by ShorelineMike! http://www.youtube.com/watch?v=KOZjJk6nbD4&feature=plcp)
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To: swamp40

I’d expected to see no electronics that weren’t from a mobile phone, and that’s not mobile phone electronics. The circuit board is another level of complexity in an IED.

Interesting that a Tenergy CR123 battery is found. They’re rechargeable. They’re also not intended for use in LED flashlights that use circuitry because they have voltage spikes that can damage electronics.


6 posted on 04/17/2013 9:39:18 AM PDT by The KG9 Kid (Demand Common Sense Nut Control.)
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To: al baby
Maybe Futaba. Here's a 2.4GHz receiver pic with notches.
7 posted on 04/17/2013 9:41:34 AM PDT by swamp40
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To: sean327

No, I can’t enhance it easily - but it’s easy enough for me to see.

It’s just a couple 1206 surface mount resistors and a couple surface mount caps.

The two thru-hole caps on the bottom are a tantalum (yellow) and a large (blown-up) electrolytic - those are used to stabilize the power supply.

Not enough to figure out what it does.

Someone (probably an RC enthusiast) will recognize the exact board outlines.


8 posted on 04/17/2013 9:46:27 AM PDT by swamp40
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To: swamp40
Doesn't look like an iPhone or Android circuit board. Their boards are far more complicated. Example:


9 posted on 04/17/2013 9:47:15 AM PDT by mnehring
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To: swamp40

The green one looks the the board from a Syma S107 rc helicopter. the other one looks the board from a WL v911 rc helicopter.


10 posted on 04/17/2013 9:47:48 AM PDT by ImAmerican
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To: swamp40

I think that’s the remains of a battery back - note the black cap, transparent sleeve and leads from this site -

http://www.all-battery.com/tenergypropel72v4200mah45adrainratenimhbatterypackswithtamiyaconnectors.aspx


11 posted on 04/17/2013 9:49:02 AM PDT by biggerten (Love you, Mom.)
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To: swamp40

Just as a point of interest, the Blade CP is older and I think originally had a 72 Mhz radio. These would be unacceptably (from the bomber’s point of view) susceptible to interference and accidental detonation. All more recent transmitter/receiver combinations would be 2.4 Ghz, including literally hundreds of Chinese variations with much more secure operation. DSM, DSMX, etc., and similar with sophisticated frequency hopping, spread spectrum protocols. Bundled transmitters have very short range but upgrading to a higher power radio is straightforward. A higher power controller could have been operated from a half mile away or more.


12 posted on 04/17/2013 9:49:11 AM PDT by steve86 (Acerbic by Nature, not Nurture™)
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To: ImAmerican

Good eye.


13 posted on 04/17/2013 9:49:58 AM PDT by steve86 (Acerbic by Nature, not Nurture™)
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To: sean327

Yes, definitely higher resolution pic of the second one. Looks like there are some SMT tactile pushbuttons on it? Or they may be power transistor packages? Could be an RC model receiver of some make. The first pic looked like cheap massed produced toy electronics.


14 posted on 04/17/2013 9:50:16 AM PDT by factoryrat (We are the producers, the creators. Grow it, mine it, build it.)
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To: The KG9 Kid
I don't see anything mobile phone related.

I see boring low-tech cheap RC or electronics hobbyist parts.

The trigger would be one of these:

15 posted on 04/17/2013 9:50:47 AM PDT by swamp40
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To: steve86

Background checks for mall heli purchasers now!

Better be safe than sorry.


16 posted on 04/17/2013 9:51:37 AM PDT by steve86 (Acerbic by Nature, not Nurture™)
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To: mnehring

I agree.


17 posted on 04/17/2013 9:52:10 AM PDT by swamp40
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To: biggerten

Yes, I agree 100%. Ebay sells them, as well.


18 posted on 04/17/2013 9:52:57 AM PDT by swamp40
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To: swamp40

Tenergy? Is that a common brand? Never heard of it myself.

One thing Muslims do before jihad is shave themselves completely. Are there tiny shaved-off hairs in the components
or bag?


19 posted on 04/17/2013 9:53:00 AM PDT by txhurl (Breitbart lives.)
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To: swamp40
It looks like the cable was made to Canadian 'FT2' standards

"FT2 on an electrical cord refers to the CSA (Canadian Standards Associations) test designation for wires and cables. FT2 is the minimum mandatory horizontal flame test for Flexible Cord. A burner flame is applied to a horizontal sample for five 15 second applications and must not exceed 100mm from end to end. There should also be no type of flame particles falling from the sample."


20 posted on 04/17/2013 9:54:32 AM PDT by Perdogg (Sen Ted Cruz, Sen Mike Lee, and Sen Rand Paul are my adoptive Senators)
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To: swamp40

Looks like a rechargable battery from a RC pack, notice the curve plastic pieces by the battery, shrink wrap from a battery pack? Could be an RC receiver from some model.


21 posted on 04/17/2013 9:55:07 AM PDT by factoryrat (We are the producers, the creators. Grow it, mine it, build it.)
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To: swamp40

Weird knock-off brand battery.

Probably only sold in the Middle East...


22 posted on 04/17/2013 9:55:29 AM PDT by 2banana (My common ground with terrorists - they want to die for islam and we want to kill them)
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To: swamp40

The range for that one would be inadequate unless you want to experience the blast first-hand.

Better convert to a Spectrum or something (at least 100 mW).


23 posted on 04/17/2013 9:58:30 AM PDT by steve86 (Acerbic by Nature, not Nurture™)
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To: 2banana

It is actually pretty common in rechargeable cells like for cordless home phones, camera batteries, or RC toys. If you cut those cells open, you’ll see groups of these batteries.


24 posted on 04/17/2013 9:58:58 AM PDT by mnehring
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To: factoryrat

Someone else on the Daily Mail website stated it was a battery pack from a RC car or something like that.


25 posted on 04/17/2013 9:59:06 AM PDT by woodbutcher1963
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To: txhurl

Turnigy — slightly different spelling — is very common. Odd.


26 posted on 04/17/2013 10:00:10 AM PDT by steve86 (Acerbic by Nature, not Nurture™)
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To: swamp40

Wouldn’t take much to have an on-demand delay timer.


27 posted on 04/17/2013 10:01:45 AM PDT by Cboldt
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To: swamp40

bump


28 posted on 04/17/2013 10:01:49 AM PDT by Westbrook (Children do not divide your love, they multiply it.)
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To: 2banana

http://www.tenergy.com/Site/Contact-Us


29 posted on 04/17/2013 10:01:54 AM PDT by lakeman (Semper Fi)
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To: swamp40

And the resistors have printing on them. It’s hard to tell, since there’s nothing for scale, but in my experience that makes them 0805 or 1206 sizes. 0603 or smaller just aren’t big enough.


30 posted on 04/17/2013 10:02:50 AM PDT by biggerten (Love you, Mom.)
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To: swamp40

The green piece with the jagged edge on top appears to fit with the jagged edge in the second photo, part of the same circuit board upside down. From the ruler, the whole intact board would appear to have been about 4 cm by 4 cm.

31 posted on 04/17/2013 10:04:38 AM PDT by Meet the New Boss
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To: swamp40

If it was cellphone det wouldn’t they just use a dispoasable cell phone with a headset wire plugged into board that if the voltage passed a certaint hreshold then it would trigger it. Then set a ringtone to be very loud for a certain number and silent for the default ring tone and set the loud ring tone for a payphone or another disposable phone to prevent accidental triggering...

However you could easily by an RC copter more anonymously than a disposable cell phone.....


32 posted on 04/17/2013 10:05:45 AM PDT by GraceG
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To: 2banana
Tenergy @ Amazon
33 posted on 04/17/2013 10:07:47 AM PDT by tomkat
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To: Perdogg

600V AWM (Appliance Wiring Material) conductors, 14 AWG. The red one shows “Style 3135,” which is Heat-Resistant Silicone Cable. The long nomenclature is a traceability of sorts, to the insulating material.


34 posted on 04/17/2013 10:08:01 AM PDT by Cboldt
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To: Meet the New Boss

Well, I’m pretty sure they are two different colors, which would mean two separate pcbs.

Green is by far the most common pcb color, but there are lots of blue ones as well.


35 posted on 04/17/2013 10:09:38 AM PDT by swamp40
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To: swamp40

Again...Alert:

CNN reporting suspect ‘clearly identified’...facial and seen placing package.....video from Lord and Taylor ....male, dark skinned.....


36 posted on 04/17/2013 10:10:04 AM PDT by caww
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To: swamp40
Its odd that they post hi-res close ups of a nail and parts of the pressure cooker but not the PCBs. there is definately printing on the second board. Not to mention any board from a mass produced toy or phone or anything would have model numbers, rev numbers and component locations printed on them.
why are they photographed from so far away???
37 posted on 04/17/2013 10:10:13 AM PDT by ImAmerican
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Endless FReepathons
Do you Know Why?

There are loyal posters that donate every FReepathon. Some donate several times during every 'thon. But others never donate. Why?

1 My enemies haven't been zotted.
2 The owner doesn't support my candidate.
3 FR won't "upgrade" to "Like" buttons and blinky crap.
4 Someone else will donate.
5 My friend was zotted.
6 I lost my job and have no income.

Only one of those is a legitimate reason.

Support It Or Lose It


38 posted on 04/17/2013 10:11:24 AM PDT by DJ MacWoW (My faith and politics cannot be separated)
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To: mnehring

Umm, not sure where you got that “cell phone” photo, but it is obviously Photoshopped. It’s just a picture of a cell phone enclosure with a cropped image of a PC mother board overlaid on it. Unless, of course, there is a cell phone out there with PCI expansion slots inside and a big CPU heatsink.


39 posted on 04/17/2013 10:12:08 AM PDT by noiseman (The only thing necessary for the triumph of evil is for good men to do nothing.)
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To: mnehring

cnn reporting authorities have a clear identification of suspect...photo from Lord and Taylor video....male, dark skinned...seen placing a package. Seems this is huge breakthrough.


40 posted on 04/17/2013 10:12:48 AM PDT by caww
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To: swamp40

Tenergy isn’t a typical “eBay” cheap-o battery. I have purchased them myself from a legit battery outfit.

But not saying it couldn’t come from eBay... just not one of the more typical brands from there


41 posted on 04/17/2013 10:15:31 AM PDT by TheBattman (Isn't the lesser evil... still evil?)
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To: DJ MacWoW
If this .. 3 FR won't "upgrade" to "Like" buttons and blinky crap .. happens, all hope is lost.


curmudgeons gonna curmudge

42 posted on 04/17/2013 10:16:11 AM PDT by tomkat
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To: swamp40

They appear to me to be related to those electronic cooking timers that you can get complete with battery at any housewares department in any 5&10 store, Wal-Mart, drug stores, etc....


43 posted on 04/17/2013 10:16:38 AM PDT by Cold Heat
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To: caww

standing by ... keep me updated please.


44 posted on 04/17/2013 10:20:09 AM PDT by no-to-illegals (Scrutinize our government and Secure the Blessing of Freedom and Justice)
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To: ImAmerican

They probably want us to know they have the PCBs, but they don’t want to reveal what’s on them. They only want so much “help” from us guys.


45 posted on 04/17/2013 10:20:34 AM PDT by Cyber Liberty (I am a dissident. Will you join me? My name is John....)
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To: tomkat

I agree. FR is sleek and streamlined. I like it! :-)


46 posted on 04/17/2013 10:20:35 AM PDT by DJ MacWoW (My faith and politics cannot be separated)
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To: swamp40

Some boards have a different color on the solderside than on the component side.

The jagged edges seem to match well, perhaps this is a case of a board using different colors.


47 posted on 04/17/2013 10:20:42 AM PDT by Meet the New Boss
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To: swamp40

Early reports of “crude device” with the circuitry involved seem to me are dispelled and this was the work of more than some “lone wolf” even though it was locally fabricated.


48 posted on 04/17/2013 10:21:16 AM PDT by mosesdapoet (Serious contribution pause..Please continue onto meaningless venting no one reads.)
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To: Tijeras_Slim
I’ve been designing PCB’s since ‘99, and they all look alike to me.

That's wacist.

49 posted on 04/17/2013 10:22:22 AM PDT by martin_fierro (< |:)~)
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To: caww

Bump.


50 posted on 04/17/2013 10:24:50 AM PDT by mnehring
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